Please use this identifier to cite or link to this item:
|Title:||A facile approach for the preparation of biomorphic CuO-ZrO 2 catalyst for catalytic combustion of methane|
Biomorphic CuO-ZrO 2 catalyst
Methane catalytic combustion
|Citation:||Luo, J., Xu, H., Liu, Y., Chu, W., Jiang, C., Zhao, X. (2012-05-07). A facile approach for the preparation of biomorphic CuO-ZrO 2 catalyst for catalytic combustion of methane. Applied Catalysis A: General 423-424 : 121-129. ScholarBank@NUS Repository. https://doi.org/10.1016/j.apcata.2012.02.025|
|Abstract:||A series of novel biomorphic CuO-ZrO 2 catalysts were prepared using a cotton bio-template and compared with conventional CuO-ZrO 2 catalysts. The physical and chemical properties of the as-obtained catalysts were characterized by techniques including X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), H 2-temperature programmed reduction (H 2-TPR), and O 2-temperature programmed desorption (O 2-TPD). The catalytic combustion of methane was chosen as the probe reaction. The results suggested that the bio-template method prepared porous biomorphic CuO-ZrO 2 catalysts consist of hollow microtubes. Comparing with conventional CuO-ZrO 2 catalysts, biomorphic CuO-ZrO 2 catalysts displayed better reducibility and oxygen mobility, stronger metal-oxides synergistic effect, appropriate particle size distribution, and lower activation energy. The crystalline state of zirconia transformed from a single crystallite phase of t-ZrO 2 into a complex of m-ZrO 2 and t-ZrO 2 after introducing the bio-template. With proper CuO content (20 mol%), the biomorphic CuO-ZrO 2 catalyst displayed preponderant properties. The compensation of surface lattice oxygen from bulk lattice oxygen was more available at high reaction temperatures. © 2011 Elsevier Ltd. All rights reserved.|
|Source Title:||Applied Catalysis A: General|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 17, 2019
WEB OF SCIENCETM
checked on Jan 9, 2019
checked on Dec 21, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.